Update: CL-HTTP 37.8, (MCL 1.6.2, ACL 0.4 Alpha)

• To: www-cl@ai.mit.edu
• Subject: Update: CL-HTTP 37.8, (MCL 1.6.2, ACL 0.4 Alpha)
• From: JCMA@ai.mit.edu (John C. Mallery)
• Date: Tue, 25 Jul 1995 08:53:03 -0400
• Sender: owner-www-cl@ai.mit.edu

A patched version of yesterday's distribution is available today on
the FTP site for all architectures.

1. Netscape 304 Loop fixed.  There was a bug whereby under certain
circumstances, Netscape browsers would go into a cycle with CL-HTTP
because they send a if-modifed-since header and a pragma="no-cache"
header when they in fact want a fresh copy of the resource.

CL-HTTP assumed that this conditional get would not be done when a client wanted
to refresh it's cache. No such luck.  The current implementation does not
do a conditional get when the if-modifed-since header is present,
the resource has changed, but  pragma="no-cache" header is present.

37.8 may also improve other interactions with Netscape beyond the 304 loop.

2. MCL 2.0.1 users will benefit from a fix to the mac-sysdcl.lisp file
that avoids a blowout during loading.

3. Don't forget to send your abstract for the LUV '95 tutorial presentations of
your hacks.  See the cl-http home page for details.

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